Unprocessed and Unhewn

Unprocessed adjective - Being such as found in nature and not altered by processing or refining.

Unhewn and unprocessed are semantically related In some cases you can use "Unhewn" instead an adjective "Unprocessed".

Unhewn adjective - (of stone especially) not given a finished form by or as if by hewing.

Unprocessed and unhewn are semantically related in crude topic. You can use "Unprocessed" instead an adjective "Unhewn", if it concerns topics such as rough, basic.